Your sleep problems and stomach discomfort may be side effects of the cough medicines you took. It’s important to talk to your doctor, who can confirm if the medicines are the cause and suggest safer alternatives or treatment.

Yes, vitamin deficiencies, particularly B12, folate, or iron, may cause mouth ulcers. The burning sensation in your chest may be due to acid reflux. Your doctor may check blood tests to identify the specific deficiency and guide appropriate treatment.

The feeling of food coming back up, called regurgitation, is usually a primary symptom of acid reflux or gastresophageal reflux disease (GERD). However, if it happens often or without any acid taste, it may be due to a movement problem, such as achalasia, or another structural issue in your oesophagus. Please see your doctor to rule out any serious underlying conditions.

To reduce evening acid reflux, eat smaller meals, avoid spicy, fatty, or acidic foods, and limit caffeine and alcohol. Do not lie down immediately after eating, and try to have your last meal at least two to three hours before bedtime.

An IgE level of 1600 is very high and indicates a significant allergic response, which may be causing your discomfort in cold weather. It is important to see a doctor for an allergy evaluation to identify triggers and consider treatments such as antihistamines or immunotherapy. For acid reflux, your doctor may prescribe medications to reduce stomach acid, such as an antacid, a proton pump inhibitor, or an H2 blocker, and advise on lifestyle and dietary changes to help manage your symptoms.

Yellow vomiting, especially in the morning on an empty stomach, may be due to bile reflux, delayed stomach emptying, or irritation from chronic acid reflux. Your long-term use of antacids may also contribute by relaxing the valve between the stomach and the small intestine, allowing bile to flow back into the stomach. You should consult your doctor or gastroenterologist to determine the exact cause and receive appropriate treatment.